gcc/testsuite/gcc.dg/tree-ssa/pr22171.c

   1 /* { dg-options "-O2" } */
   2
   3 static unsigned int old_serial_port_irq[10];
   4
   5 static struct uart_8250_port {
   6   volatile unsigned int slock;
   7   unsigned int irq;
   8 } serial8250_ports[10];
   9
  10 static __inline__ __attribute__((always_inline)) int irq_canonicalize(int irq)
  11 {
  12   return ((irq == 2) ? 9 : irq);
  13 }
  14
  15 void serial8250_isa_init_ports(void)
  16 {
  17   struct uart_8250_port *up;
  18   int i;
  19
  20   for (i = 0, up = serial8250_ports; i < 10; i++, up++)
  21     up->irq = irq_canonicalize(old_serial_port_irq[i]);
  22 }
  23
  24 int main(void)
  25 {
  26   serial8250_isa_init_ports();
  27   return 0;
  28 }